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Discussion Starter · #1 ·
i read the post which says buy cat back and some cheap muffler...
i know cheap muffler won't help any h/p, but does cat back it self help h/p?

if i buy 5zigen's muffler, would it help at least 1hp? and how much should i think to pay in muffler shop...


<hr noshade width=60% size=1 align=left>KOREAN DRIVE KOREAN CAR.
JAPANESES DRIVE JAPANESE CAR.
VIETNAMISE DRIVE JAPANESE CAR.
BUT AMERICAN DRIVE KOREAN CAR.
 
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